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 TM 123 Spur Gear Lifting Apparatus
 Technical Description

The mechanism demonstrates the relationship between the ratio of the number of teeth on spur gears and the transmission ratio of gears. With straightforward experiments, the torque conversion in gear wheel pairs and the efficiency of a gear unit are investigated.
The model is intended for wall mounting. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments

Learning the key variables and correlations of a spur gear
- Velocity ratios of spur gears
- Gear with intermediate wheel or two-stage gearing
- Influence of friction on transmission
- Determining efficiency

 Features

* Set-up and principle of toothed gearing

mechanisms

 Alternative products
TM 110.03 -- Supplementary Set -  Gear Wheels
TM 121 -- Wheel and Axle Apparatus
TM 122 -- Wheel and Differential Axle Apparatus
 Specification [1] Demonstration and student experimental unit on set-up and principle of toothed gearing mechanisms[2] 4 galvanised steel gear wheels[3] 2 anodised aluminium cable pulleys[4] 2 sets of weights [5] Ball bearing-mounted gear wheels and pulleys[6] Anodised aluminium base plate Technical Data 4 gear wheels- 2x D=126mm, 84 teeth - 2x D=42mm, 28 teeth  - modulus: m=2mmDriving pulley radius: 35mm Set of weights- 2x 1N suspended- 2x 0,25N- 1x 0,5N- 2x 1N- 2x 2N- 2x 2,5N Base plate- lxwxh: 350x150x10mm Dimensions and Weight l x w x h: 350x70x150mmWeight: approx. 5kg Scope of Delivery 1 gear unit, mounted on base plate2 sets of weights1 set of instructional material Order Details 040.12300  TM 123  Spur Gear Lifting Apparatus
 © 2005 G.U.N.T. Gerätebau GmbH